Engraved t.p. and vignettes at beginning of each of the six books are by Theodoor Galle after Peter Paul Rubens; see Rooses. Printer's device (compasses) on recto of last leaf. Numerous in-text woodcut diagrams, one engraved. Decorated initials
Errata, p. 
Signatures: *-4* A-3O 3P
Liber 1. De organo, obiecto, naturaq[ue] visus -- Liber 2. De radio optico et horoptere -- Liber 3. De communium obiectorum cognitione -- Liber 4. De fallaciis aspectus -- Liber 5. De luminoso et opaco -- Liber 6. De proiectionibus
Rooses, M. uvre de P.P. Rubens
Binding: 19th-century tan paper, vellum back & corners. Spine tooled in gilt, with author & title in gilt on green label. Page edges sprinkled red. Red ribbon place marker
Centered on front pastedown is woodcut bookplate (image of Pegasus, motto "nec adversa retorquent," initials GPC). Ownership inscription on recto of 1st page (Caroli de ?Calupiris [1 word] in Civitate Aven). Red stamp on t.p. with initials COG, surmounted by a coronet
No table of contents. Foxing. Narrow margins. Gutter included to avoid cropping text. Irregular pagination. Missing and misprinted page numbers.